Palm trees are a very popular choice for homeowners and landscapers, but what happens when your palm tree starts showing some unusual signs? Use this guide to help you understand the signs of palm and helpful hints concerning deficiencies treatment.
Manganese Deficiency (Mn) or “frizzletop” affects the new leaves, resulting in the yellowing and necrosis (tissue death) between the veins and a reduction in leaf size. As deficiency becomes severe, the new leaves wither and have a “frizzled” look. If not promptly treated, Manganese deficiency is often deadly to the palm.
Manganese deficiency can affect most species of palms. Queen, Paurotis, and Royal Palms are particularly susceptible.
Magnesium Deficiency(Mg) affects the older leaves, causing them to yellow at the edges while the center band stays green. In severe cases leaflet tips also become necrotic. Magnesium deficiency can affect most species of palms. Date palms are particularly susceptible.
Potassium Deficiency (K) causes yellow, orange, brown flecks and necrotic margins of older leaves. Withering (“frizzling”) begins on these older leaves first. From a distance these leaves often appear brown or orange in color. If deficiency is severe enough, new shoots will eventually be affected.
If unattended, the palm may die. Curing the potassium deficiency can lead to magnesium deficiency. To balance, K and Mg should be applied together. Potassium deficiency is common in most species of palms in Florida.
Treatment: Treatments may be made anytime when a deficiency is spotted. To help cure your plant McShane’s Nursery recommends Dr. Earth Organic 10 Palm, Tropical, and Hibiscus Fertilizer or Palm Power Specialty Fertilizer. The size of the tree and seriousness of the deficiency are factors in how fast palm trees recover from their deficiency.
*Credit T.K. Broschat for majority of palm information.